Mechanosensitivity of Nanoporous Silicon-Based Binary Mixtures

Properties of Two and Three-Component Explosive Compositions Based on Porous Silicon

“…The oxidants are selected due to their simplicity, availability (except for the latter), and high degree of solubility in widely used and volatile solvents. In addition, their oxygen equivalent, the mass of the oxidizer in grams which is required to release 1 g of oxygen with its complete (or incomplete) reduction, was taken into account [8]. Dinitramide salt was chosen as it is a promising chlorine-free oxidizer of composite solid rocket propellants (CSRPs), which has better energy characteristics than the ammonium perchlorate traditionally used in CSRPs [15].…”

“…In addition to binary compositions, three-component compositions (with additives) were studied. This is primarily due to the fact that, as shown by the tests of the binary compositions [8], they turned out to be quite sensitive to mechanical stress. In a number of designs of primer-igniters, there is a part, the anvil [16], against which the shock composition rests, and when the anvil is inserted into the capsule's shell, it can accidentally trigger the ignition of the composition.…”

“…According to the standard technique, a matrix with a pressed sample of an EC of mass (0.012 ± 0.002) g is inserted into the cylindrical socket of the frame. A polished and carefully checked steel striker with a striking pad of length (1.20 ± 0.02) mm [8] is placed in the hole of the matrix. A weight of 200 g is dropped from an appropriate height.…”

“…Currently, developments related to the creation of the so-called green energetic materials, for example, shock-igniting compositions (SICs) for primers-ignitors or primers-detonators, based on structured silicon at the nanoscale [1][2][3][4][5][6][7][8][9], both monocrystalline and porous silicon, are a promising area of research in the applied physics of combustion and explosions.…”

“…Compositions based on porous silicon (por-Si), in principle, can replace the standard capsule (shockigniting or even detonating) compositions and explosives (in particular, pentaerythritol tetranitrate (PETN)), since they showed a sufficient level of sensitivity to simple initial pulses [8,14]. In addition, due to the unique nanoporous structure of silicon, the bond of the latter with the oxidizing agent occurs almost at the…”